Do Nutrition Claims Matter to Consumers? An Empirical Analysis Considering European Requirements

EU Regulation 1924/2006 introduced a European legal framework for nutrition messages for food product labels. The study analyses consumer interest towards nutrition labelling and claims, and examines the information consumers consider important during their purchasing decisions, and the main characteristics of those consumers interested in nutrition claims and nutrition labelling use. A total of 1,025 northern Italian consumers were surveyed. We estimate one binary logit model to investigate the use of nutrition labelling, and seven other ordinal regression models to analyse consumer interest towards nutrition claims and labelling. Consumers who use nutrition labelling have characteristics different from those who use nutrition claims. Consumers using nutrition labelling show a marked interest in food safety concerns, use experts as their source of information and have specific dietary habits. For consumers concerned about nutrition claims, the survey shows significant links with attributes influencing purchasing behaviour, such as price, brand, certification, etc. Socio‐demographic characteristics are statistically significant and show a positive link with age, gender and a negative linkage with income.     

Product Differentiation with Credence Attributes and Private Labels: The Case of Whitefish in UK Supermarkets

The retail market for seafood is dynamic with substantial competition both amongst retailers and between private labels and national brands. New product attributes are added in attempts to differentiate products and to attract consumers. Credence attributes, in particular those related to eco‐labels and fishing method, have become more common. But little is known about how these and other credence attributes are valued in the retail market. In addition, little is known about price differences between private labels. To estimate the value of these attributes, weekly in‐store observations of selected frozen whitefish products were conducted in seven UK retail chains in the city of Glasgow. An estimated hedonic model shows a substantial price premium for fishing method (line‐caught), a premium for both home (Scottish) and non‐home country of origin (Icelandic) and a premium for the Marine Stewardship Council eco‐label. An uncertified eco‐label owned by a large seafood manufacturer leads to reduced price. The study also reveals substantial price differences between private labels for whitefish. The results contribute new insights regarding opportunities for differentiation by credence attributes which may lead to more sustainable and effective resource use along the value chain for frozen whitefish.     

Energy‐milk price transmission at the product brand level

This article estimates the pass‐through rates between diesel fuel and retail milk prices at the product brand level. Using a random coefficient logit demand model and taking the direct and indirect impacts of energy prices, this research identifies changes in pass‐through rates before and after the great recession in 2008. Empirical results show that diesel prices significantly impacted the retail prices of milk products and are an important determinant of food price inflation. Pass‐through rates are estimated to range from 0.16 to approximately 0.60 through 2008 with an average of 0.22 for the whole period. Statistical tests indicate that pass‐through rates before June 2008 were significantly higher than after June 2008 when they dropped significantly to 0.04 to 0.17. Interestingly, private label brands have the lowest pass‐through rates, implying that compared to manufacturer brands, private label prices are more insulated from diesel price shocks.     

The role of retail market power and state regulations in the heterogeneity of farm‐retail price transmission of private label and branded products

Given the leading role of private label brands in the fluid milk market, it is of special interest to focus on possible differences in farm‐retail price transmission between private label and branded milk as well as the causes of heterogeneity. This article examines the heterogeneous effects of private label and branded products on price transmission in the fluid milk market using a panel threshold asymmetric error correction model. Results indicate that upward retail‐price adjustment is faster than the downward price adjustment for both private label and branded milk. The speed of adjustment of private label products is significantly faster than branded products in three different price regimes. We further investigate the reasons of heterogeneity in farm‐retail price transmission of private label milk. We find that both retailer market power and state pricing regulations contribute to the heterogeneity in asymmetric price transmission. Higher retailer market power causes retail prices of private label milk to rise faster and to fall slower. The existence of a state pricing regulation slows down the adjustment speed of retail prices of private labels back to the long‐run equilibrium, regardless of whether the retail price is low or high.     

Hedonic wine price functions with different prices

This study examines the impact that recommended retail prices, actual market prices and the release of a prominent wine guide have on Australian wine hedonic price estimates, for attributes such as sensory quality, winery reputation and grape region. In general, hedonic price estimates appear to be independent of prices employed. The main identified differences in estimates relate to the size of the producer and some regional impacts. For market prices only, increases in producer size are estimated to reduce prices. This implies the existence of supply chain quantity discounting price practices. The impact of an authoritative wine guide appears to have a negligible influence on prices in Australia. In the absence of market transaction prices, the common practice of employing recommended prices for hedonic wine price estimation is defendable.     

Transaction Cost Thresholds in International Rice Markets

Recent episodes of high and volatile prices for grains such as rice have raised concerns about their implications for hunger and poverty. We model price relationships between international rice prices and 221 domestic prices in 47 developing countries that import rice. We use a threshold vector error correction model that accounts for transaction costs of trade in spatial price transmission, and an improved regularised Bayesian threshold estimator for threshold models. Our results show that threshold values are higher after 2008 than before, which suggests that transaction costs in international rice trade have increased in recent years. Threshold values are highest for Latin American countries followed by African and Asian countries, and higher for retail than for wholesale prices. Since 2008, price transmission is slower in countries that responded to high and volatile prices with domestic market‐based interventions such as price controls and faster in countries that responded by lowering tariffs and by implementing production support measures.     

Retail Price Fixity as a Facilitating Mechanism

Previous theoretical explanations for retail price fixity show that fixed retail prices can be consistent with either competitive or imperfectly competitive behavior. We develop a conceptual model of retail pricing wherein fixed price points are facilitating mechanisms for tacit collusion. A non-cooperative equilibrium in fixed retail prices is supported through credible threats to revert to Nash pricing if cheating is suspected. We test the implications of this model using a two-stage, ordered probit approach in weekly supermarket pricing data. The results show that price fixity does support collusive equilibria among retailers, but other factors may also explain retail price behavior.     

我国鸡蛋价格波动传导的影响因素分析——基于非对称的研究视角

[目的]文章采用鸡蛋价格的周度批发和零售数据,从成本、替代品两个维度探讨鸡蛋价格波动的影响因素和非对称传导特征。[方法]通过滚动回归的方式探讨非对称传导特征的动态变化,并进一步探讨了鸡蛋批零价格之间的相互影响和非对称传导特点。[结果]成本、替代品价格变动对与鸡蛋批零价格具有正向影响和非对称特征,但在静态的线性回归模型中并不明显。鸡蛋批发价格受成本价格变动的影响更大,而零售价格受替代品价格变动的影响更大。在动态的滚动回归模型下,成本、替代品价格对鸡蛋价格波动具有十分明显的时变非对称特征,但这种非对称传导特征并不一致。鸡蛋批发价格早期对零售价格具有正向的非对称传导,但近年来趋向于对称传导。鸡蛋零售价格对批发价格总体具有负向的非对称传导特征,零售价格下降对批发价格的影响更大。[结论]需要建立蛋鸡产业成本—价格监测预警系统,充分发挥产业技术平台、行业协会、学会等研究机构在生产决策中的指导作用。不断完善鸡蛋供应链建设,增强调控与监管政策的灵活性与创新性。     

An inverse demand analysis with introduction of quality effects: an application to Spanish consumption of fruit and vegetables

This article analyzes consumer preference for fruit and vegetables when, by using time series with socioeconomic characteristics of households, there can be seemingly unobserved quality effects, which are increased by aggregation. The changes in Spanish demand for fresh and processed fruit and vegetables over the period 1987–2000 are discussed. Following previous tests and analyses, quantities are taken as predetermined and prices as matching the offer conditions. Thus, quality effects (based on the nutritional and/or health value of the product) are estimated from the error terms associated with the functions of the unit values. Quality variables are introduced as taste shifters in the inverse demand system (Laitinen–Theil model). The results show the positive effects of quality differences on the normalized price for the group of products through own‐quality flexibilities, and the negative effects between fresh and processed products through cross‐quality flexibilities.     

The Value of Product Attributes,Brands and Private Labels: An Analysis of Frozen Seafood in Germany

It is well known that the price of a food in general and fish in particular is a function of a number of attributes such as species, product form, processing form and size. However, limited attention has been given to the influence of private labels, production method, eco‐labels and promotions. We use a unique dataset which identifies these attributes in the German seafood market. We estimate a hedonic price function, and our results highlight the importance of brand and labels for seafood prices in Germany. Our results also suggest that private label products are discounted by 20%, while branded products achieve substantial price premiums, as do fish products from aquaculture.     

Segmenting the Wine Market Based on Price: Hedonic Regression when Different Prices mean Different Products

Many economists have estimated hedonic price functions for red and white wine. However, estimating a single hedonic price function imposes the assumption that the implicit prices of the attributes are the same for any red or white wine. We argue that even within these two categories, wines are differentiated, and disregarding this heterogeneity causes an aggregation bias in the estimated implicit prices. By estimating hedonic functions specific to price ranges, we show that the wine market is segmented into several product classes or market segments. We find that a model accounting for the existence of wine classes has greater ability to explain the variability in the data and produces more accurate and interpretable results regarding the implicit prices of the attributes.     

Healthy Competition to Support Healthy Eating? An Investigation of Fruit and Vegetable Pricing in UK Supermarkets

Governments and public health officials are urging the public to eat more fruits and vegetables to contribute to a healthy diet. However, there is concern that a lack of effective competition amongst supermarket retailers has resulted in inflated prices for these products which are deterring consumers from eating more of these healthy foods. We investigate this by examining the nature and extent of price competition for fresh fruits and vegetables amongst UK supermarket retailers, drawing on a panel of weekly retail and corresponding wholesale market prices over a seven‐year period. We find that the extent of supermarket competition varies across the products, being quite intense on some but much weaker on others, where the retailers do not fully respond to each other's prices and where the extent of their competitive interaction varies significantly with each other.     

“农户+合作社+超市”模式下的农产品价格形成研究——以北京番茄市场为例

农超对接有效缩减了农产品流通环节,有利于建立农户与零售商之间稳定的购销关系,有利于稳定农产品价格,促进农产品市场健康发展。文章基于“农户+合作社+超市”模式,以蔬菜产品为例,分析农超对接模式中的农产品价格形成。研究发现:农户与蔬菜合作社之间的议价能力是决定农产品价格形成的关键;在农户对番茄收购价格议价能力大于合作社的情况下,以完全成本计算的番茄理论均衡收购价格最接近番茄实际收购价格;在合作社目标利润率为15%的情况下,番茄均衡零售价格最接近其实际零售价格。     

Supermarket Promotions and Food Prices: A Note

Using a sample comprising nearly 250,000 weekly prices from the largest seven UK supermarket chains, this note investigates two pricing practices that have attracted public interest: the tendency for promotions to ‘disguise’ rises in non‐sale prices and the inflation of prices prior to sales which ‘exaggerate’ the discount. Analysing price dynamics before and after periods of promotional discounting results show post‐sale prices are typically lower than pre‐sale prices, contrary to the disguise hypothesis. We do, however, find evidence of exaggeration of the discount, which may potentially explain why prices fall after discounts, although the evidence is not sufficiently widespread for this to be the sole cause. Results parallel the competition authority's view of supermarket promotions and point to the useful contribution that retail price microdata might play in keeping prices in check in countries where highly concentrated retail sectors raise similar concerns.     

Impacts of the End of the Coffee Export Quota System on International‐to‐Retail Price Transmission

We examine the impact of the end of the coffee export quota system (EQS) on international‐to‐retail price transmission in France, Germany and the United States. We take account of the existence of long‐run threshold effects and short‐run price transmission asymmetries (PTAs). We find evidence of threshold effects in both periods (EQS and post‐EQS) in all three countries and the presence of short‐run PTAs during the post‐EQS period in all countries, but not during the EQS period. Our results indicate that the threshold values are smaller in the post‐EQS period, suggesting that retail prices became more responsive to changes in international prices. However, the speed of adjustment towards the long‐run equilibrium decreases during the post‐EQS period in the three countries. In the short run, non‐linear impulse response analyses indicate that a shock in international prices was more persistent during the EQS period than in the post‐EQS period. Moreover, we find evidence of short‐run PTAs in the post‐EQS period, with differences across countries. We find support for the ‘rockets and feathers’ principle in the United States; in contrast, retail prices respond faster when international prices are falling in Germany and France. We explain these differences in terms of market structures.     

Impacts of Market Reform on Spatial Volatility of Maize Prices in Tanzania

Maize is one of the major staples and cash crops for many Tanzanians. Excessive volatility of maize prices destabilises farm income in maize‐growing regions and is likely to jeopardise nutrition and investment in many poor rural communities. This study investigates whether market reform policies in Tanzania have increased the volatility of maize prices, and identifies regional characteristics that can be attributed to the spatial price volatility. To achieve the objectives, an autoregressive conditional heteroskedasticity in mean (ARCH‐M) model is developed and estimated in this study. Results show that the reforms have increased farm‐gate prices and overall price volatility. Maize prices are lower in surplus and less developed regions than those in deficit and developed regions. Results also show that the developed and maize‐deficit regions, and regions bordering other countries have experienced less volatile prices than less developed, maize‐surplus and non‐bordering regions. Our findings indicate that investments in communication and transportation infrastructures from government and donor countries are likely to increase inter‐regional and international trade, thereby reducing the spatial price volatility in Tanzanian maize prices in the long run.     

The Canadian Beef and Pork Sectors: New Found Relevance of Live Market Information

The structure of price transmission both vertically (between links in the market channel) and horizontally (between market areas) for beef and pork in Canada is examined. The analysis of vertical price transmission indicates that farmgate prices lead retail prices. The hypothesized relationship between retail and farmgate prices is that the farmgate demand curve is shifted by wholesaler anticipation of the retail price changes. Such a situation would place greater importance on the live markets since prices determined in these markets would eventually be reflected in the retail market. The results have further implications for the determination of price margins and related policy issues.     

Product Differentiation and Cost Pass‐Through

The present paper extends the existing literature on vertical price transmission and cost pass‐through by investigating the impact of product differentiation. We apply distance‐measures of product differentiation to a specific product market (yoghurt) within one country (Germany). Results from a panel‐error‐correction model for 30 products sold in 432 stores over a period of 312 weeks suggest that product differentiation explains a significant share of differences in cost pass‐through rates: more differentiated products command higher prices and are characterised by lower equilibrium cost pass‐through rates as well as more sluggish price adjustment.     

Demand for Fresh Fruits in Scotland: Potential Implications from Brexit

The need to improve the quality of the diet of Scottish consumers has increased the interest and efforts to understand the determinants of fruit and vegetables, as they may help to prevent a range of diet-related health problems. The purpose of this paper is to analyze the demand for fresh fruit in Scotland, with particular emphasis on the contribution of Mediterranean areas. A further motivation comes from depreciation of the GB Pound with respect to the Euro and the US Dollar following the UK’s decision to exit the European Union (Brexit). This is particularly important in the case of fruit because about 80% of the fruit consumed in the United Kingdom is of foreign origin and therefore depreciation of the currency may increase the price of imported fruit. The demand for fruit was modelled as a two-stage budget to include fruit origin. The results indicate that the demand for fresh fruit is sensitive to changes in prices and the pass-through of GBP depreciation may impact negatively on the Scottish demand for fruit and the country’s nutrition goals.     

Derived Demand and Relationships between Prices at Different Levels in the Value Chain: A Note

In this paper we note that when there is only one variable factor in the intermediaries' production technology, prices at different levels in the value chain will move proportionally to each other over time. This is also the only general condition under which the elasticity of price transmission is equal to one, so that retail price signals are perfectly transmitted to primary product producers and vice versa. This allows a test of whether derived demand elasticities contain information about consumer elasticities using only prices. An empirical illustration is provided using data from the Norwegian cod sector.